#include <stdio.h>
#include <math.h>
int main()
{
	float x;
	#define pi 3.141592654
	printf("Nhap vao so thuc x: x= ");
	scanf("%f",&x);
	printf("y2= %f\n",(sin(pi*x*x)+sqrt(x*x+1))/(exp(2*x)+cos(0.25*pi*x))); 
	return 0;
}